Re: Bounce/System Notification Address Verification
2005-06-28 21:51:00
I am not rejecting anything. All I am suggesting is that when more than
one recipient is to be used for the message, to generate a separate copy
for each recipient (with only that recipient listed as the "To") so
there are separate copies (as would occur with multi-recipient [messages
where each recipient is in a different domain] at the MTA stage ).
Why should an MTA or MUA bother to do this? This part of the SMTP
standard has been stable since c. 1980 and it has _never_ required this.
OK - Not a Rule but only the usual occurrence with <> messages such as
"can not deliver" messages. If those functions that generate
multi-recipient messages with a <> from would just create a separate
copy for each recipient it would make SPAM detection (of <> messages)
much easier
no it wouldn't. it would just mean that spammers would have to use
another return address besides <> or send only one RCPT per session.
it's not as if the check you propose imposes much of a hurdle for
spammers to clear.
spammers have consistently shown themselves to be very flexible at
adapting to far more substantial countermeasures. and it's much easier
for spammers to adapt than for the vast installed base to adapt. it is
counterproductive to impose meaningless restrictions on legitimate
senders. in the long term this only adds complexity and damages
transparency of the mail system without doing anything to discourage spam.
Keith
<Prev in Thread] |
Current Thread |
[Next in Thread>
|
- Re: Bounce/System Notification Address Verification, (continued)
- A request and a warning (was: Re: Bounce/System Notification Address Verification), John C Klensin
- Re: A request and a warning, Frank Ellermann
- Re: A request and a warning, Keith Moore
- Re: A request and a warning (was: Re: Bounce/System Notification Address Verification), Hector Santos
- Re: Bounce/System Notification Address Verification, Robert A. Rosenberg
- Re: Bounce/System Notification Address Verification, Bruce Lilly
- Re: Bounce/System Notification Address Verification, Robert A. Rosenberg
- Re: Bounce/System Notification Address Verification,
Keith Moore <=
- Re: Bounce/System Notification Address Verification, John C Klensin
- Re: Bounce/System Notification Address Verification, Hector Santos
- Re: Bounce/System Notification Address Verification, Robert A. Rosenberg
- Re: Bounce/System Notification Address Verification, Russ Allbery
- Re: Bounce/System Notification Address Verification, Keith Moore
- Re: Bounce/System Notification Address Verification, Hector Santos
- Re: Bounce/System Notification Address Verification, Tony Finch
- Re: Bounce/System Notification Address Verification, Robert A. Rosenberg
- Re: Bounce/System Notification Address Verification, Bruce Lilly
- Re: Bounce/System Notification Address Verification, Robert A. Rosenberg
|
|
|